Positioning device



FIG. 1 is a top, front and right side perspective view of a positioning device showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereon; and,

FIG. 6 is the view of FIG. 1, the dotted line showing of a hand is for environmental purposes only and forms no part of the claimed design. 

The ornamental design for a positioning device, as shown and described. 